CN104900453B - Residual-current circuit breaker - Google Patents
Residual-current circuit breaker Download PDFInfo
- Publication number
- CN104900453B CN104900453B CN201510280130.XA CN201510280130A CN104900453B CN 104900453 B CN104900453 B CN 104900453B CN 201510280130 A CN201510280130 A CN 201510280130A CN 104900453 B CN104900453 B CN 104900453B
- Authority
- CN
- China
- Prior art keywords
- linkage portion
- chamber
- moving contact
- rotating shaft
- linkage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
Abstract
The invention relates to a residual-current circuit breaker. The main objective of the invention is to solve the problems of poor synchronism of an electric leakage tripping portion and an overload/short-circuit tripping action and poor tripping performance in the tripping process of an existing residual-current circuit breaker. The residual-current circuit breaker of the invention is characterized in that the residual-current circuit breaker comprises an integrally-molded rotating shaft; the rotating shaft includes a first linkage portion arranged in a first chamber, a second linkage portion arranged in a second chamber, and a connecting portion connected with the first linkage portion and the second linkage portion; the first linkage portion is in linkage connection with an operating handle through a connecting rod, and is matched with a lock catch through a tripping catch; the first linkage portion is provided with a first moving contact; and the second linkage portion is provided with a second moving contact. According to the residual-current circuit breaker of the invention, the first moving contact and the second moving contact are installed on the first linkage portion and the second linkage portion of the rotating shaft respectively, and since the rotating shaft is of an integrated structure, the synchronism of the first moving contact and the second moving contact can be ensured, and the contacts can be assuredly pulled apart simultaneously, and the breaking performance of the circuit breaker can be ensured.
Description
Technical field
The present invention relates to a kind of breaker, specifically related to a kind of RCCB.
Background technology
RCCB is actually a kind of breaker with creepage protection function.Generally RCCB by shell,
Handle, operating mechanism, contact mechanism, electrical leakage tripping device, overload/short circuit tripping mechanism and indicating mechanism.
Chinese invention patent application（Shen Qing Publication day 2013.04.24, notification number CN 103065885A）Disclose one kind
New pattern creepage breaker, supports to be connected with N level contact collaborative supports, it is to avoid there is card during operation handle return by L levels contact
Stagnant phenomenon, contact being capable of quickly disjunction.
But because L levels contact supports support to be split-type structural with N levels contact, L levels contact is supported to connect with lever linkage
Connect, while driving N levels contacts to support, its action is present successively, when RCCB is threaded off, electric leakage is threaded off part and overload/short
Road trip action can not reach Complete Synchronization, and Interruption is bad.
The content of the invention
In order to overcome the shortcomings of background technology, the present invention provides a kind of RCCB, solves existing RCCB and takes off
During button, electric leakage dropout part is bad with the synchronism of overload/short-circuit trip action, the problem of Interruption difference.
The technical solution adopted in the present invention：A kind of RCCB, including base, shell, the base both sides difference
It is provided with first chamber, second chamber；Be provided with short-circuit tripping mechanism in the first chamber, including operation handle, connecting rod, tripping,
Lock, the first electrical apparatus release；Electrical leakage tripping device is provided with the second chamber, the electrical leakage tripping device connects with lock linkage
Connect；
Also include integrally formed rotating shaft, the rotating shaft includes the first linkage portion being arranged in first chamber, is arranged on
The second linkage portion in second chamber, and the connecting portion of the first linkage portion of connection and the second linkage portion；First linkage portion
It is connected with operation handle by connecting rod, by tripping and snap fit；First linkage portion is provided with the first moving contact,
Second linkage portion is provided with the second moving contact.
Second linkage portion is provided with reduction torsion spring.
The base is split-type structural, including big base, small footprint, the connecting portion of the rotating shaft be arranged on big base with
Between small footprint.
The small footprint both sides are equipped with bolt hole, and the small footprint is fixedly connected by bolt with shell.
The electrical leakage tripping device include the second electrical apparatus release, release link, driving lever, second electrical apparatus release by release link with
Driving lever is connected, and the driving lever is connected with lock, and release link spring, the release link bullet are additionally provided with the release link
Spring is engaged with the second linkage portion.
Second electrical apparatus release is electromagnetic release, and in the second chamber current transformer is additionally provided with.
Second linkage portion is provided with installation set, spring stack, middle in the second moving contact one end insertion installation set
One section is arcuate structure, and offsets with spring stack；The spring stack is provided with the spacing torsion spring of fixed moving contact.
Arc-extinguishing mechanism is additionally provided with the first chamber.
The shell is provided with leak(age) test PBU pushbutton unit.
The invention has the beneficial effects as follows：Using above scheme, the first moving contact and the second moving contact are separately mounted to turn
In first linkage portion and the second linkage portion of axle, because rotating shaft is integral type structure, therefore the first moving contact and second are can guarantee that
The synchronism of moving contact action, it can be ensured that contact disjunction simultaneously, improves breaker interrupting performance.
Description of the drawings
Fig. 1 is embodiment of the present invention structural representation.
Fig. 2 is the structural representation in embodiment of the present invention first chamber.
Fig. 3 is embodiment of the present invention second chamber inner structure schematic diagram.
Fig. 4 is embodiment of the present invention first chamber inner structure schematic diagram.
Fig. 5 is the structure schematic diagram of the big base knot of the embodiment of the present invention.
Fig. 6 is the structural representation of embodiment of the present invention small footprint.
Fig. 7 is the structural representation in embodiment of the present invention Fig. 3 at A.
Fig. 8 is the structural representation of embodiment of the present invention rotating shaft.
Specific embodiment
Below in conjunction with the accompanying drawings embodiments of the present invention is further illustrated：
As illustrated, a kind of RCCB, including base 2, shell 1, the base 2 is respectively provided on two sides with the first chamber
Room, second chamber；Short-circuit tripping mechanism, arc-extinguishing mechanism 16 are provided with the first chamber, the short-circuit tripping mechanism includes behaviour
Make handle 3, connecting rod 4, tripping 6, the 7, first electrical apparatus release 8 of lock；
Electrical leakage tripping device, including the second electrical apparatus release 11, release link 12, driving lever 13 are provided with the second chamber, it is described
Second electrical apparatus release 11 is connected by release link 12 with driving lever 13, and the driving lever 13 is connected with lock 7；
Also include integrally formed rotating shaft 5, the rotating shaft 5 includes the first linkage portion 51 being arranged in first chamber, sets
Put the second linkage portion 52 in second chamber, and the connecting portion 53 of the first linkage portion 51 of connection and the second linkage portion 52；Institute
State the first linkage portion 51 to be connected with operation handle 3 by connecting rod 4, coordinated with lock 7 by tripping 6；First linkage
Portion 51 is provided with the first moving contact 9, and second linkage portion 52 is provided with the second moving contact 10, in second linkage portion 52 also
It is provided with reduction torsion spring 19.
When closing a floodgate, rotating shaft 5 is driven to rotate by operation handle 3, rotating shaft 5 can simultaneously drive the first moving contact 9 and second
Moving contact 10 is fitted with corresponding static contact；When overload/short circuit, the first electrical apparatus release 8 promotes lock 7 it is separated with tripping 6,
Rotating shaft 5 is turned round in the effect of reduction torsion spring 19, while driving the first moving contact 9 and the second moving contact 10 to paste with corresponding static contact
Close and separate；When earth leakage protective, the second electrical apparatus release 11 promotes lock 7 by release link 12 with driving lever 13 so as to 6 points of tripping
From rotating shaft 5 is turned round in the effect of reduction torsion spring 19, while driving the first moving contact 9 and the second moving contact 10 and corresponding stationary contact
Head laminating is separated；Because rotating shaft 5 is integral type structure, therefore can guarantee that the first moving contact 9 is same with the action of the second moving contact 10
Step property, it can be ensured that contact disjunction simultaneously, improves breaker interrupting performance.
Wherein, second electrical apparatus release 11 is electromagnetic release, and current transformer 15 is additionally provided with the second chamber,
Relative to the electrical apparatus release of electronic type, its holding function is not affected the electrical apparatus release of electromagnetic type by supply voltage, and antijamming capability
By force, reliability is higher, further improves breaker interrupting performance.
Be additionally provided with release link spring 14 in the release link 12, the release link spring 14 be arranged on the second linkage portion 52 with
Between release link 12, during tripping operation, the second electrical apparatus release 11 can promote release link 12 to realize threading off, meanwhile, rotating shaft 5 can be rotated, and it the
Two linkage portions 52 can then promote release link spring 14 to make release link 12 reset, and promote the thimble return of the second electrical apparatus release 11.
In addition, the base 2 is split-type structural, including big base 21, small footprint 22, the connecting portion of the rotating shaft 5 sets
Put between big base 21 and small footprint 22, the small footprint both sides are equipped with bolt hole 23, the small footprint 22 passes through bolt
It is fixedly connected with shell 1, during installation, the mounting groove being first put into the connecting portion 53 of rotating shaft 5 between big base 21 and small footprint 22
It is interior, it is being fixedly connected with big base, small footprint bolt respectively by shell, realization is assembled and positioned, simple structure, is assembled also non-
It is often convenient.
Second linkage portion 52 is provided with installation set 54, spring stack 55, and the one end of the second moving contact 10 insertion is installed
54 in set, middle one section is arcuate structure, and is offseted with spring stack；The spring stack 55 is provided with the spacing torsion of fixed moving contact
Spring 18, the mounting structure assembling of this second moving contact is convenient.
The shell is provided with leak(age) test PBU pushbutton unit 17, during leak(age) test, presses leak(age) test button, can detect
Whether RCCB is in earth leakage protective state, further ensures that its creepage protection function.
Claims (7)
1. a kind of RCCB, including base（2）, shell（1）, the base（2）Be respectively provided on two sides with first chamber, second
Chamber；Short-circuit tripping mechanism, including operation handle are provided with the first chamber（3）, connecting rod（4）, tripping（6）, lock（7）、
First electrical apparatus release（8）；Electrical leakage tripping device, the electrical leakage tripping device and lock are provided with the second chamber（7）Linkage connects
Connect；
It is characterized in that：Also include integrally formed rotating shaft（5）, the rotating shaft（5）Including first be arranged in first chamber
Linkage portion（51）, the second linkage portion for being arranged in second chamber（52）, and the first linkage portion of connection（51）With the second linkage
Portion（52）Connecting portion（53）；First linkage portion（51）By connecting rod（4）With operation handle（3）It is connected, by jumping
Button（6）With lock（7）Coordinate；First linkage portion（51）It is provided with the first moving contact（9）, second linkage portion（52）On
It is provided with the second moving contact（10）；
Second linkage portion（52）It is provided with installation set（54）, spring stack（55）, second moving contact（10）Insert one end
Installation set（54）Interior, middle one section is arcuate structure, and is offseted with spring stack；The spring stack（55）It is provided with fixed moving contact
Spacing torsion spring（18）;
The base（2）For split-type structural, including big base（21）, small footprint（22）, the rotating shaft（5）Connecting portion arrange
In big base（21）With small footprint（22）Between.
2. RCCB according to claim 1, it is characterised in that：Second linkage portion（52）It is provided with reset to turn round
Spring（19）.
3. RCCB according to claim 1, it is characterised in that：The small footprint both sides are equipped with bolt hole
（23）, the small footprint（22）It is fixedly connected with shell (1) by bolt.
4. RCCB according to claim 1, it is characterised in that：The electrical leakage tripping device includes the second electrical apparatus release
（11）, release link（12）, driving lever（13）, second electrical apparatus release（11）By release link（12）With driving lever（13）It is connected,
The driving lever（13）With lock（7）It is connected, the release link（12）On be additionally provided with release link spring（14）, the release link
Spring（14）With the second linkage portion（52）It is engaged.
5. RCCB according to claim 4, it is characterised in that：Second electrical apparatus release（11）For electromagnetic type dropout
Device, in the second chamber current transformer is additionally provided with（15）.
6. RCCB according to claim 1, it is characterised in that：Arc-extinguishing mechanism is additionally provided with the first chamber
（16）.
7. RCCB according to claim 1, it is characterised in that：The shell is provided with leak(age) test PBU pushbutton unit
（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280130.XA CN104900453B (en) | 2015-05-28 | 2015-05-28 | Residual-current circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510280130.XA CN104900453B (en) | 2015-05-28 | 2015-05-28 | Residual-current circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104900453A CN104900453A (en) | 2015-09-09 |
| CN104900453B true CN104900453B (en) | 2017-05-10 |
Family
ID=54033058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510280130.XA Expired - Fee Related CN104900453B (en) | 2015-05-28 | 2015-05-28 | Residual-current circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104900453B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2418862A1 (en) * | 1974-04-19 | 1975-10-30 | Licentia Gmbh | Magnetic tripping system for protective cct. breaker - has non-magnetic stop in solenoid channel with recessed contact lever stop |
| EP0616351A1 (en) * | 1993-03-19 | 1994-09-21 | Siemens Aktiengesellschaft | Switching device, in particular circuit breaker |
| CN101145478A (en) * | 2007-10-12 | 2008-03-19 | 温州市新蓝天电器有限公司 | Circuit breaker with leakage, overloading and short circuit protector |
| CN101540245A (en) * | 2009-04-16 | 2009-09-23 | 浙江正泰电器股份有限公司 | Operating mechanism of small residual current action breaker |
| CN204088225U (en) * | 2014-09-03 | 2015-01-07 | 浙江麦克力电气股份有限公司 | Can circuit breaker with reclosing transmission mechanism in opening and closing neutral pole |
| CN204696061U (en) * | 2015-05-28 | 2015-10-07 | 温州锐能电器有限公司 | Residual current circuit breaker |
-
2015
- 2015-05-28 CN CN201510280130.XA patent/CN104900453B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2418862A1 (en) * | 1974-04-19 | 1975-10-30 | Licentia Gmbh | Magnetic tripping system for protective cct. breaker - has non-magnetic stop in solenoid channel with recessed contact lever stop |
| EP0616351A1 (en) * | 1993-03-19 | 1994-09-21 | Siemens Aktiengesellschaft | Switching device, in particular circuit breaker |
| CN101145478A (en) * | 2007-10-12 | 2008-03-19 | 温州市新蓝天电器有限公司 | Circuit breaker with leakage, overloading and short circuit protector |
| CN101540245A (en) * | 2009-04-16 | 2009-09-23 | 浙江正泰电器股份有限公司 | Operating mechanism of small residual current action breaker |
| CN204088225U (en) * | 2014-09-03 | 2015-01-07 | 浙江麦克力电气股份有限公司 | Can circuit breaker with reclosing transmission mechanism in opening and closing neutral pole |
| CN204696061U (en) * | 2015-05-28 | 2015-10-07 | 温州锐能电器有限公司 | Residual current circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104900453A (en) | 2015-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Huameng Plaza No. 2 Lucheng District Wenzhou city Zhejiang province 325000 Station Road, room 2212 Applicant after: Wenzhou Ruineng Electrical Appliance Co., Ltd. Applicant after: Xu Sheng Address before: 325000 Yueqing, Wenzhou, Liushi Town, the Liujiang River Road, No. 3666, No. Applicant before: Wenzhou Ruineng Electrical Appliance Co., Ltd. Applicant before: Xu Sheng |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |